Floor brush assembly for vacuum cleaner, and vacuum cleaner

Abstract

Provided are a floor brush assembly for a vacuum cleaner and the vacuum cleaner. The floor brush assembly includes a roller brush component and a driving mechanism. The roller brush component includes a sleeve and a roller brush body rotatably mounted in the sleeve. The roller brush body is provided with bristles. The driving mechanism includes a power source and a transmission component. The transmission component includes a first driving member, a second driving member, and a driving wheel connected to the power source. The driving wheel is connected to the first driving member through a transmission shaft to drive the roller brush body to rotate. The driving wheel is connected to the second driving member through a linkage structure to drive the sleeve to rotate. The first driving member and the second driving member are eccentrically arranged to allow the bristles to be selectively extended out of or retracted into the sleeve.

1 . A floor brush assembly for a vacuum cleaner, the floor brush assembly comprising:
 a roller brush component, the roller brush component comprising a sleeve and a roller brush body rotatably mounted in the sleeve, the roller brush body being provided with bristles; and   a driving mechanism, the driving mechanism comprising a power source and a transmission component, the transmission component comprising a first driving member, a second driving member, and a driving wheel connected to the power source, wherein:   the driving wheel is connected to the first driving member through a transmission shaft to drive the roller brush body to rotate;   the driving wheel is connected to the second driving member through a linkage structure to drive the sleeve to rotate; and   the first driving member and the second driving member are eccentrically arranged to allow the bristles to be selectively extended out of or retracted into the sleeve.   
     
     
         2 . The floor brush assembly according to  claim 1 , wherein the driving wheel has a first transmission hole and a second transmission hole located at a radial outer side of the first transmission hole, and wherein the second driving member has an avoidance hole and a third transmission hole located at a radial outer side of the avoidance hole, wherein:
 the transmission shaft passes through the first transmission hole and is relatively fixed to the driving wheel circumferentially;   the transmission shaft passes through the avoidance hole to be connected to the first driving member; and   the linkage structure has an end extending into the second transmission hole to be rotatably engaged with the driving wheel and another end extending into the third transmission hole to be rotatably engaged with the second driving member.   
     
     
         3 . The floor brush assembly according to  claim 2 , wherein:
 an axis of the first transmission hole is coincident with a rotation axis of the driving wheel;   an axis of the avoidance hole is coincident with a rotation axis of the second driving member; and   an axis of the transmission shaft is offset from the axis of the avoidance hole.   
     
     
         4 . The floor brush assembly according to  claim 3 , wherein the linkage structure comprises a first link, a connection block, and a second link, wherein:
 the first link and the second link are respectively connected to two ends of the connection block and extend away from each other from two sides of the connection block;   the first link extends into the second transmission hole; and   the second link extends into the third transmission hole.   
     
     
         5 . The floor brush assembly according to  claim 3 , wherein:
 a plurality of second transmission holes is provided and arranged at intervals around the first transmission hole;   a plurality of third transmission holes is provided and arranged at intervals around the avoidance hole; and   a plurality of linkage structures is provided, the plurality of linkage structures, the plurality of second transmission holes, and the plurality of third transmission holes being arranged in one-to-one correspondence.   
     
     
         6 . The floor brush assembly according to  claim 5 , wherein:
 the plurality of second transmission holes is evenly arranged at intervals in a circumferential direction of the first transmission hole; and   the plurality of third transmission holes is evenly arranged at intervals in a circumferential direction of the avoidance hole.   
     
     
         7 . The floor brush assembly according to  claim 3 , wherein the transmission component further comprises a bearing support block rotatably supported at the second driving member, the bearing support block having an eccentric hole, an axis of the eccentric hole being offset from the axis of the avoidance hole, and the transmission shaft being rotatably supported at the eccentric hole. 
     
     
         8 . The floor brush assembly according to  claim 1 , further comprising:
 a motor support connected to the power source; and   a driving side end cover detachably mounted at the motor support,   wherein an end of the transmission shaft away from the roller brush body is rotatably supported at the driving side end cover, and the second driving member is rotatably supported at the motor support.   
     
     
         9 . The floor brush assembly according to  claim 1 , wherein:
 the first driving member is provided with first driving teeth at a side of the first driving member facing towards the roller brush body;   the roller brush body is provided with first driven teeth at a side of the roller brush body facing towards the first driving member, the first driving teeth being engaged with the first driven teeth;   the second driving member is provided with second driving teeth at a side of the second driving member facing towards the sleeve; and   the sleeve is provided with second driven teeth at a side of the sleeve facing towards the second driving member, the second driving teeth being engaged with the second driven teeth.   
     
     
         10 . A vacuum cleaner, comprising:
 a floor brush assembly, comprising:
 a roller brush component, the roller brush component comprising a sleeve and a roller brush body rotatably mounted in the sleeve, the roller brush body being provided with bristles, and 
   a driving mechanism, the driving mechanism comprising a power source and a transmission component, the transmission component comprising a first driving member, a second driving member, and a driving wheel connected to the power source, wherein:   the driving wheel is connected to the first driving member through a transmission shaft to drive the roller brush body to rotate;   the driving wheel is connected to the second driving member through a linkage structure to drive the sleeve to rotate; and   the first driving member and the second driving member are eccentrically arranged to allow the bristles to be selectively extended out of or retracted into the sleeve.   
     
     
         11 . The vacuum cleaner according to  claim 10 , wherein the driving wheel has a first transmission hole and a second transmission hole located at a radial outer side of the first transmission hole, and wherein the second driving member has an avoidance hole and a third transmission hole located at a radial outer side of the avoidance hole, wherein:
 the transmission shaft passes through the first transmission hole and is relatively fixed to the driving wheel circumferentially;   the transmission shaft passes through the avoidance hole to be connected to the first driving member; and   the linkage structure has an end extending into the second transmission hole to be rotatably engaged with the driving wheel and another end extending into the third transmission hole to be rotatably engaged with the second driving member.   
     
     
         12 . The vacuum cleaner according to  claim 11 , wherein:
 an axis of the first transmission hole is coincident with a rotation axis of the driving wheel;   an axis of the avoidance hole is coincident with a rotation axis of the second driving member; and   an axis of the transmission shaft is offset from the axis of the avoidance hole.   
     
     
         13 . The vacuum cleaner according to  claim 12 , wherein the linkage structure comprises a first link, a connection block, and a second link, wherein:
 the first link and the second link are respectively connected to two ends of the connection block and extend away from each other from two sides of the connection block;   the first link extends into the second transmission hole; and   the second link extends into the third transmission hole.   
     
     
         14 . The vacuum cleaner according to  claim 12 , wherein:
 a plurality of second transmission holes is provided and arranged at intervals around the first transmission hole;   a plurality of third transmission holes is provided and arranged at intervals around the avoidance hole; and   a plurality of linkage structures is provided, the plurality of linkage structures, the plurality of second transmission holes, and the plurality of third transmission holes being arranged in one-to-one correspondence.   
     
     
         15 . The vacuum cleaner according to  claim 14 , wherein:
 the plurality of second transmission holes is evenly arranged at intervals in a circumferential direction of the first transmission hole; and   the plurality of third transmission holes is evenly arranged at intervals in a circumferential direction of the avoidance hole.   
     
     
         16 . The vacuum cleaner according to  claim 12 , wherein the transmission component further comprises a bearing support block rotatably supported at the second driving member, the bearing support block having an eccentric hole, an axis of the eccentric hole being offset from the axis of the avoidance hole, and the transmission shaft being rotatably supported at the eccentric hole. 
     
     
         17 . The vacuum cleaner according to  claim 10 , further comprising:
 a motor support connected to the power source; and   a driving side end cover detachably mounted at the motor support,   wherein an end of the transmission shaft away from the roller brush body is rotatably supported at the driving side end cover, and the second driving member is rotatably supported at the motor support.   
     
     
         18 . The vacuum cleaner according to  claim 10 , wherein:
 the first driving member is provided with first driving teeth at a side of the first driving member facing towards the roller brush body;   the roller brush body is provided with first driven teeth at a side of the roller brush body facing towards the first driving member, the first driving teeth being engaged with the first driven teeth;   the second driving member is provided with second driving teeth at a side of the second driving member facing towards the sleeve; and   the sleeve is provided with second driven teeth at a side of the sleeve facing towards the second driving member, the second driving teeth being engaged with the second driven teeth.